> When I try to unregister the windows service I get an error like:
> 
> C:\Program Files\PostgreSQL\8.1\bin>pg_ctl.exe unregister -N 
> "pgsql-8.1"
> pg_ctl: could not open service manager
> 
> This is on Windows XP and the logged user is postgres

You need administrative privileges to unregister a service. Can't run it
as user postgres.

//Magnus

> You need administrative privileges to unregister a service. Can't run it
> as user postgres.

I did the same under "Administrator" but then I get an access violation
error like:

Unhandled exception at 0x77c478c0 in pg_ctl.exe: 0xC0000005: Access
violation reading location 0x00000000.

What am I dong wrong?